Weather-strip.



` UNITED STATES PATENT OFFICE.

Specification. ofjLetters Patent.

Patented March 31, 1908.

Application led May 27, 1907. Serial No. 375,814.

To all whom 'it may concern:

Be it known that I, WELLINGTON W. WITIIENBURY, a citizen of the United States, and residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvementin Weather- Strips, of which the following is a complete specification.

This invention relates to improvements in weather strips and more particularly to an anti-rattling, dust proof weather strip for car windows or the like.

The obj ect of this invention is to provide a weather strip which acts at all times to center the sash between the posts, thereby preventing its binding and insuring its easy operation.

It is a further object of the invention to provide a self adjusting weather strip adapted to afford a joint of a yielding nature so that it will not only provide a cushion to prevent rattling but also provide a weather tight joint which becomes tighter as the air pressure from without increases.

It is also an obj ect of the invention to provide a 4very cheap and sim le construction ada ted to be attached to o d as well as new winows and which can be attached without the aid of skilled labor.

The invention consists of the matters hereinafter described in the specifi cation and more fully pointed out and defined in the appended claims.

In the drawings: Figure l is a fragmentary, horizontal section of a window provided with a device embodying my invention. Fig. 2 is a fragmentary section taken on line .22 of Fig. l. Fig. 3 is a fragmentary section taken on line 3-3 of-Fig. l.. Fig. 4 is a fragmentary section taken on line 4-.4 of Fig. l.

As shown in said drawings: A indicates the window post, one of which is at each side of the window opening, and a and a indicate respectively the outer and inner window stops, between which is formed the guideway in which the sash B travels. Said sash B is of somewhat less width than the distance between the posts, thereby providing an o ening or chamber C at the lateral edges of the sash to receive the weather strips, as shown more clearly in Fig. l. Said weather strip com rises as its essential features two flat face members, one of which pro'ects into said chamber from one side thereof, and the jother from the Opposite side, and one of which overlaps andV yieldingly engages the other so as to provide a tight joint irrespective of theiposition of the sash with respect' to the stops or posts; As shown however an angle late D is engaged to the post A adj acent t e inner stop a, and extends the full length of the window opening.` The flange d of said plate extends from the ostv into said chamber to near the sash, pref) 45 de rees and directed towards the outer side of the window, though obviously it may be at any other desired angle.

Secured to the edge of the sash and extending the full length thereof adjacent to the outer stop, is a retaining or.. binding piece E of metal or other preferred material,

etween which and the sash is rigidly engaged one edge of a flexible strip D of any preferred material such as rubber. Said sash, and the free edge d thereof is bent outwardly from the sash and engages over the flange d, on the side adjacent the outer stop a. Owing to the resiliency of said strip D the edge d thereof tends to resume its normal position adjacent the edge of the sash, as' shown in dotted lines in Fig. l, so that it always binds against the flange d with suflicient force to afford a tight joint, and tends to draw the sash towards the adjacent post as well as to throw it against the outer sash.

A bearing plate e is rigidly engaged to the face of the binding piece E, both at the upper and lower ends thereof, and is adapted to bear against the post when the sash is forced laterally for any reason, thereby providing a relatively small bearing surface at the edges of the sash.

The operation is as follows: Owing to the fact that the flexible strip lies fiat against the flange of the angle plate on the side thereof towards the outer side of thewindow it is fiar-ige but will be forced into closer binding contact therewith by any drafts of air that Inay attempt to pass around the edge of the sash. It is obvious also that inasmuch `as the flexible strips tend to return to their normal position against the sash, that they exert a tension on the iianges which acts to center the sash between the posts and prevent its binding thereon, and also act to force the sash against the outer stop. vjjj erably at an'v angle to the face of the post of approximately obvious that it will not only bind against the flexible strip extends the full length of the I claim as my invention:

lcombination with an outer and an inner window stop, ol" a sash slidable therebetween, a diagonal plate between said stops, and a strip of ilexible material engaging said plateA and acting to throw the sash against one ofr said stops'.

2. In a device of the class described the combination with the outer and inner win-- dow stops of a sash slidably engaged therebetween, a plate engaged beneath one stop and projecting at an angle between said stops, and a strip of flexible material engaged on the sash and lying lat against said sash and acting to force the sash against the other stop.'

3. In a device of the class described the combination with the outer and inner stops, of a sash slidable therebetween, a plate extend- ,ing diagonally between said stops and resilient means overlapping said plate and acting to force the sash against one of said stops.

4. In a device of the class describedthe combination with the outer and inner stops of a window, of a sash slidable therebetween, a plate engaged beneath the inner stop and extending diagonally between the stops, a strip, of rubber engaged on the .edge of the sash and bent outwardly oversaid plate and acting to force the sash against the outer stop, and a binding piece engaging said strip to the sash.

5. In a device of the class described the combination with a window sash, of the post angle plate carried on the p'os't and'having' its flange projecting into the guideway and towards the outer side of the window, and a strip of flexible material engaged to the edge Y*of the sash and having its edge overlapping the rear face of the flange and acting both to center the sash between the posts and to i force it against the outer stop.

6. In a device of the class described the combination with a Window sash and the posts and stops forming the guideway therefor, of a plate in said guideway extending from the post at an angle to the plane of the sash and towards the outer side thereof, a strip of ilexible material carried on the edge of the sash and having the edge thereof inserted between the ange and the post and acting against the flange to force the sash against the outer stop, and a binding piece adapted to engage said strip to the sash.

7. In a device of the class described the combination with the window stops, of a sash slidable therebetween, a rigidly supported, vertical plate projecting between said stops, and a ilexible strip yieldingly engaging said plate and' acting to force the sash against one of said stops.

In testimony whereof I have hereunto affixed my signature in the presence of two witnesses.

WELLIN G'lON W. WI'IHENBURY.

Witnesses:

F. M. CRocxER, ALBERT J. W. APPELL. 

